(19)
(11) EP 1 230 734 A1

(12)

(43) Date of publication:
14.08.2002 Bulletin 2002/33

(21) Application number: 00975644.6

(22) Date of filing: 23.09.2000
(51) International Patent Classification (IPC)7H03K 17/92, H03F 3/217
(86) International application number:
PCT/US0040/975
(87) International publication number:
WO 0122/585 (29.03.2001 Gazette 2001/13)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 23.09.1999 US 155635 P
11.01.2000 US 480274

(71) Applicant: AudioLogic, Incorporated
Boulder,Colorado 80301 (US)

(72) Inventor:
  • MELANSON, John, Laurence
    Austin, TX 78746 (US)

(74) Representative: Jackson, Richard Eric et al
Carpmaels & Ransford,43 Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) ADAPTIVE DEAD TIME CONTROL FOR PUSH-PULL SWITCHING CIRCUITS